VC12FndXPnt

V = Variables

C = Calculation functions

* = Replaces the function VC11FndXPnt

The VC12FndXPnt function calculates the x-coordinate of a point to a line with 2 points of the straight line (X1-Y1 and X2-Y2) and the y-coordinate of the point (YP).

IMPLEMENTATION

VC12FndXPnt (pointX1, pointY1, pointX2, pointY2, pointXP, pointYP)

Parameters:

IN/OUT	VARIABLE TYPE	EXAMPLE NAME	DIM
IN	SYSTEM or GLOBAL	pointX1	L/S	Point X1 of the straight line (Abscissa X1)
IN	SYSTEM or GLOBAL	pointY1	L/S	Point Y1 of the straight line (Ordinate Y1)
IN	SYSTEM or GLOBAL	pointX2	L/S	Point X2 of the straight line (Abscissa X2)
IN	SYSTEM or GLOBAL	pointY2	L/S	Point Y2 of the straight line (Ordinate Y2)
OUT	SYSTEM or GLOBAL	pointXP	L/S	Point X of the straight line calculated by the function (Unknown abscissa)
IN	SYSTEM or GLOBAL	pointYP	L/S	Point Y of the straight line for which you want to calculate the abscissa (X)

N.B.: pointX1, pointY1, pointY1, pointY2 between them must be the same size (DIM). All parameters must belong to the same type (SYSTEM or GLOBAL).

Esempio

Esegui il calcolo quando il flag “gfCalc” viene posto a 1.

IF gfCalc
	gfCalc = 0
	pointX1 = 100		;Imposta i valori dei punti della retta
	pointY1 = 600
	pointX2 = 200
	pointY2 = 1200
	pointYP = 1000
        VC12FndXPnt (pointX1,  pointY1, pointX2, pointY2, pointXP, pointYP)
        gsAscissaCal = pointXP
ENDIF

DIFFERENZE RISPETTO A VECCHIA RELEASE

dalla 10 alla 11) Introdotta la possibilità di dichiarare i parametri “ pointXP” e “ pointYP” con dimensione Long (L)
(dalla 11 alla 12) Introdotta la possibilità di utilizzare parametri tipo GLOBAL